File access mode flag "b" can optionally be specified to open a file in binary mode. This flag has effect only on Windows systems. On the append file access modes, data is written to the end of the file regardless of the current position of the file position indicator.

Original:

null-terminated character string determining new file access mode

File access mode string

Meaning

Explanation

Action if file already exists

Action if file does not exist

"r"

read

Open a file for reading

read from start

failure to open

"w"

write

Create a file for writing

destroy contents

create new

"a"

append

Append to a file

write to end

create new

"r+"

read extended

Open a file for read/write

read from start

error

"w+"

write extended

Create a file for read/write

destroy contents

create new

"a+"

append extended

Open a file for read/write

write to end

create new

File access mode flag "b" can optionally be specified to open a file in binary mode. This flag has effect only on Windows systems. On the append file access modes, data is written to the end of the file regardless of the current position of the file position indicator.

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stream

-

le flux de fichier à modifier

Original:

the file stream to modify

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